3. In a bike race, Pam has a 375-meter lead over Tonya. If Pam rides at an average rate of 7.9 meters per second and Tonya rides at an average rate of 8.3 meters per
second, about how many seconds will it take for Tonya to catch up with Pam?

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

The answer is 180ohohohoho